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3-4 example5 - Student Grady Simonton Course Math119...

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Unformatted text preview: Student: Grady Simonton Course: Math119: Elementary Statistics - Spring 2010 - CRN: 49239 Instructor: Shawn Parvini - 16 weeks Date: 2/18/10 Book: Triola: Elementary Statistics, 11e Time: 1:57 PM Below are 36 sorted ages of an acting award winner. Find the percentile corresponding to age 53 using the method presented in the textbook. 18 18 19 19 22 22 24 27 29 33 33 34 35 36 37 39 44 46 47 47 48 53 53 54 57 60 61 62 64 64 65 66 71 72 74 79 To find the percentile that corresponds to a particular x, use the following expression. Then round the result to the nearest whole number. til f 1 number of values less than x 100 ercen eo vauex=—- p total number of values For this problem x = 53. Using the sorted table above, we see that there are 21 values less than 53. As stated in the problem statement, there are 36 total values. Now find the percentile corresponding to age 53. number of values less than X percentile of value x - 100 total number of values 21 —-100=58 36 percentile of value 53 Therefore, the age of 53 is the 58th percentile. Page 1 ...
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